assigning a task to ExecutorService using submit() method

ExecutorServiceExample.java

package com.wordpress.compilationerrors;
import java.lang.Runnable;
import java.lang.*;
import java.util.concurrent.*;

// assigning a task to ExecutorService using submit() method
public class ExecutorServiceExample {
    public static void main(String[] args) {
        ExecutorService executorService = Executors.newSingleThreadExecutor();
        executorService.submit(new Runnable() {

            @Override
            public void run() {
                System.out.println("ExecutorService");

            }
        });
    }
}